Mandrel stripping and cooling mechanism.



F. E. SIMPKINS.

MANDREL STRIPFING AND COOLING MECHANISM.

APPLICATION FILED AUG.I9, 1912. RENEWED FEB. 1.1915.

Patented June 1, 1915.

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INVENTOR s E s s E N w w F. E. SIMPKINS.

MANDBEL STRIPPING AND COOLING MECHANISM. APPLICATION FILED AUG.I9. 1912.RENEWED FEB. 1.191s.

Patented June 1, 1915.

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WITNESSES FRANK E. SIMP-KINS, OF YOUNGSTOWN, OHIO.

MANDREL STRIPPING AND COOLING MECHANISM.

Specification of Letters Patent.

Patented June 1, 1915.

Original application filed May 3, 1911, Serial No. 624,868. Divided andthis application filed August 19, 1912, Serial No. 715,905. RenewedFebruary 1, 1915. Serial'No. 5,5e8.

To all whom it may concern Be it known that I, FRANK E. SIMPKINS, aresident of Youngstown, in the county of Mahoning and State of Ohio,have invented certain new and useful Improvements in Mandrel Strippingand Cooling Mechanism, of which'the following is a specification.

This invention (a division of my application filed May 3, 1911, SerialNo. 621,865) relates to improved and efficient mechanism for strippingtubes from the ,mandrels on which they are rolled; and for cooling thestripped mandrels; and for presenting and holding the mandrels inposition to receive the rolled tubes.

In the accompanying drawings, Figure 1 is a top plan of the improvedmechanism shown partly in section, and Fig. 2 is a side elevation of thesame, a portion of the mechanism being shown in section through theaxial line of therotatable carrier. Fig. 3 is a front end view. Figs. 4and 5 are cross sections on lines H and 5-5, respectively, of Fig. 1.Fig. 6 is a rear end view.

Referring to the drawings, 2 designates an open-top water chamber ortank, and

mounted therein is a rotatable carrier con-- sisting of shaft 3 to whichis secured a series of circular heads 1. The arrangement is preferablysuch that the under half of the carrier is within chamber 2. Mounted inthe carrier heads 4 are the tubular holders 5, arranged in a concentricseries around and paralleling carrier shaft 3. The holders are mountedto rotate individually in heads 4, being preferably provided with ballbearings 6, Fig. 1.

The carrier is adapted to place holders 5 successively in line with atube rolling pass, formed for example by rolls A, with the activemandrel B extending through one of holders 5, as in Fig. 1, with itsrear end held by a swinging gate 7 of usual construction, and with itsfront end holding the piercing head C in position in the tube formingpass. As the rolled tube emerges from the pass and moves outwardly overmandrel B it enters holder 5 at the belled end 5' of the latter pushingahead of it the mandrel-centering rings 8. After the full length of therolled tube has been projected from the tube rolling pass piercing headC is removed or drops ofl, gate 7 is opened as in dotted lines in Fig.1, and the tube and mandrel are advanced longitudinally through theholder, as with a pair of tongs. a sufiicient distance to place theouter ends thereof in position to be moved by the rotating carrierbetween stripping rolls 9 which form an open-end pass, Figs. 1 and 5. Inline with rolls 9 are the grooved rolls 10 which form a finishing passthrough which the stripped tube is extended, rolls 10 being disposed atright angles to rolls 9, and the two sets of rolls connected forsimultaneous driving by shafts 11, power being applied through shaft 12.

The carrier is rotated, as by worm crankshaft 14 meshing with gear 15 onshaft 3, F 1g. 3, for moving the headed end B of the mandrel forwardlyover guide 13 and placing it in position between the latter and thesupplemental guide 16, thereby holding the mandrel against longitudinalmovement. The some movement places the outer ends of the tube andmandrel between rolls 9. whereupon the latter are operated to strip thetube from the held mandrel, the tube being projected outwardly betweenfinishing rolls 10, as will be understood. After the tube has beenstripped from the mandrel the carrier is rotated, moving the mandreldownwardly and submerging it in the water-containing chamber 2. In orderthat the mandrel may be uniformly and thoroughly cooled aseparate orindividual rotary movement is imparted to tubular holder 5 by means of agear wheel 17 secured thereto which meshes with a curved rack 18 securedto the bottom of the tank, Figs. 1 and 4, so that by the time themandrel is again moved into line with the tube-rolling pass for anotherrolling operation it is thoroughly cooled. A latch 19 operates to holdthe carrier with a holder 5 properly alined with the roll pass.

The improved mechanism cooperates in a most efiicient manner with a tubemill,

taking care of the mandrel holding, tube stripping and mandrel coolingoperations.

I claim 1. The combination of pass-forming rolls, a mandrel carriermovable relatively to the rolls, a mandrel holder on the carrier adaptedto be moved by the latter into and out of position for receiving amandrel from the rolls, and a cooling chamber into which the carrier isadapted to move the mandrel-supporting holder.

2. The combination of pass-forming rolls,

a mandrel carrier at the delivery side of the rolls with the carrierrotatable about a horizontal axis, a plurality of mandrel holders on thecarrier adapted successively to receive mandrels from the rolls, and acooling chamber in which the under portion of the carrier travels andthrough which it is adapted to move the mandrel holders.

3. The combination of pass-forming rolls, a mandrel carrier at thedelivery side of the rolls and adapted to receive a mandrel from thelatter, the carrier mounted to rotate about a horizontal axis, and acooling chamber in which the under portion of the carrier travels andthrough which it is adapted to move the mandrel received from the rolls.

4. The combination of pass-forming rolls, a cooling chamber, and amandrel carrier adapted to receive a mandrel from the roll pass and moveit into the cooling chamber.

5. The combination of pass-forming rolls, a cooling chamber, a mandrelcarrier rotatable through the cooling chamber with a portion of thecarrier at the exterior of the chamber and adapted to receive a mandrelfrom the roll pass.

6. The combination of a cooling chamber, acarrier movable therein fortube rolling mandrels, the carrier adapted to receive a mandrel with arolled tube thereon, and means for stripping the tube from themandrel'before the latter is submerged in the cooling chamber.

7 The combination of a cooling chamber, a rotatable carrier partiallywithin the chamber and with the portion at the exterior thereof adaptedto receive a mandrel with a rolled tube thereon, and stripping means towhich the carrier presents the mandrel and tube for stripping the tube.

' from the mandrel before the latter is submerged in the coolingchamber.

8. The combination of a cooling chamber, mandrel holding means, tubestripping means, and a carrier movable in the chamber and adapted toreceive the mandrel with a rolled tube thereon and present them to themandrel holding and tube stripping mechanisms for removing the tube fromthe mandrel before submerging the latter in the cooling chamber.

9. The combination of a cooling chamber, mandrel holding means at oneend thereof, tube stripping means at the opposite end of the chamber,and a carrier rotatable between said holding and stripping means andwith the carrier partially within the chamber, the carrier adapted toreceive a mandrel with a rolled tube thereon and present them to saidholding and stripping means for removing the tube from the mandrelbefore advancing the latter into the cooling chamber.

10. The combination of a cooling chamber, a mandrel carrier movable inthe chamber for submerging a mandrel, a mandrel holder movably mountedon the carrier, and means for moving the holder as the carrier advancesthe mandrel through the chamber.

11. The combination of a cooling chamber, a rotatable mandrel carrierpartially within the chamber, a mandrel holder rotatably mounted on thecarrier, and means for rotating the holder as the mandrel is advancedthrough the chamber by the rotation of the carrier.

12. The combination of a cooling chamber, a rotatable carrier partiallywithin the chamber, a series of tubular mandrel holders rotatablymounted in the carrier, and means for rotating the holders as they areadvanced through the chamber by the rotation of the carrier.

13. The combination of a cooling cham-- ber, a mandrel and tube carriermovable therein, pass-forming rolls between which the carrier is adaptedto move the mandrel and tube, mandrel holding means, and means foroperating the rolls to strip the tube from the mandrel with the latterremaining on the carrier and adapted to be moved by the latter into thecooling chamber.

14. The combination of a cooling chamher, a mandrel and tube carriermovable therein, pass-forming rolls between which the carrier is adaptedto move the mandrel and tube, a second set of pass-forming rolls in linewith and having its rolls disposed at right angles to the rolls of thefirst mentioned pass, mandrel holding means, and means for operating therolls to strip the tube from the mandrel with the latter maining on thecarrier and adapted to Lnoved by the latter into the cooling cham- 15.The combination of "a carrier adapted to receive a mandrel and rolledtube, stripping rolls between which the carrier is adapted to move themandrel and tube, means for holding the mandrel on the carrier, andmeans for operating the rolls 0 strip the tube from the held mandrel. j

16. The combination of stripping rol s, a mandrel holder, means foroperating t e rolls to strip the tube from a held mandrel, and means forpresenting the mandrel and tube to said-holding and stripping means.

In testimony whereof I aflix my signa ture in presence of two witnesses.

FRANK E. SIMPKINS.

Witnesses:

MARY RYAN, D. R. Bass.

